摘要
基于Cu-Mn中间层可改善Cu与CuCrZr合金的连接性能，采用高能球磨法制备Cu-Mn合金粉末，研究烧结温度为650～850℃、Mn含量（质量分数）为10%～50%的Cu-Mn合金的烧结性能。结果表明：随Mn含量增加， Cu-Mn 合金的相对密度和抗拉强度先增大后减小，但 Mn 含量过高时生成较多的 MnO，导致合金性能下降；随烧结温度升高，合金的相对密度和抗拉强度增大。850℃下烧结的67Cu-33Mn合金孔隙较小、组织均匀，其相对密度和抗拉强度均达到最大值，分别为91.62%和610.91 MPa，表明67Cu-33Mn合金具有最佳的烧结活性，宜作为Cu与CuCrZr合金连接的中间层。
In order to improve the bonding properties of Cu to CuCrZr, Cu-Mn alloys with Mn mass fraction of 10%？50% were prepared by high energy ball milling and solid-phase sintering （650？850℃）. The effects of Mn content on sintering properties of Cu-Mn were studied. The results show that the relative density and strength of the Cu-Mn alloy increases, and then decreases with increasing the Mn content; With further increase of Mn content, more MnO phase appears, which results in the properties of Cu-Mn alloy decreasing. With increasing sintering temperature, the relative density and tensile strength of the Cu-Mn alloy increase. When being sintered at 850℃, the optimum properties of 67Cu-33Mn alloy with homogenous microstructure and small pores are obtained, the maximum values of relative density and tensile strength are 91.62% and 610.91 MPa, respectively. Therefore, 67Cu-33Mn alloy can be used as the interlayer between Cu and CuCrZr alloy.
出处
《粉末冶金材料科学与工程》
EI
北大核心
2016年第4期541-545,共5页
Materials Science and Engineering of Powder Metallurgy
基金
国家磁约束核聚变能发展研究专项(2014GB115001)
国家自然科学基金重点项目(51534009)
教育部博士点基金资助项目(20130162130002)
